Heating – Advancing structure flexing – looping or coiling sheet – web... – Internally heated roll
Patent
1976-08-04
1978-05-23
Camby, John J.
Heating
Advancing structure flexing, looping or coiling sheet, web...
Internally heated roll
432 8, 432 65, F27B 928, F27D 300
Patent
active
040908410
ABSTRACT:
In a machine, for making corrugated paper, of the kind including hollow cylindrical rollers, a process and apparatus is provided for improved heating of the rollers. Liquefied gas is burnt within the hollow interiors of the rollers, and the rollers are heated by radiation from the resultant combustion gases. A combustion tube is fitted into the interior of each roller, and a liquefied gas jet burner is located outside each roller and includes a nozzle directed towards one end of the combustion tube. A radiator tube is provided within the roller in surrounding spaced relation to the combustion tube, forming an annular space therebetween through which auxiliary air is supplied. The radiator tube is heated primarily by radiation from the combustion tube, and transmits its heat by radiation to the roller. Means are provided for cooling each bearing of the rollers.
REFERENCES:
patent: 932587 (1909-08-01), Sheldon
patent: 1634353 (1927-07-01), Frantz
patent: 2037680 (1936-04-01), Duncan
patent: 2497154 (1950-02-01), Dailey, Jr. et al.
patent: 2763477 (1956-09-01), Marks
patent: 3116915 (1964-01-01), Nesbitt
patent: 3452967 (1969-07-01), Durand
Asitrade AG
Camby John J.
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